Avoid doing computed shifts and parameterizing with
tables, so that all lookups can be with a fixed
base and only do one bit-operation.
Tested: Refactoring, covered by existing tests.
Change-Id: I8c4ffdb0eaef6c26de996ca40d1d697c1ba23bb7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/392943
Reviewed-by: Stephen Adams <sra@google.com>
Commit-Queue: Lasse Nielsen <lrn@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Lasse R.H. Nielsen
17592a58e3